Semaglutide vs Tirzepatide

A comprehensive, data-driven comparison of Semaglutide (Ozempic) and Tirzepatide (Mounjaro). Compare efficacy, side effects, costs, FDA approval status, and clinical evidence to make an informed decision.

Semaglutide
FDA Approved
Type 2 diabetes and chronic weight management
Evidence
High
Avg. Weight Loss15%
Monthly Cost$1,000 - $1,400/mo
DosingWeekly
ManufacturerNovo Nordisk
Tirzepatide
FDA Approved
Type 2 diabetes and chronic weight management
Evidence
High
Avg. Weight Loss22.5%
Monthly Cost$1,100 - $1,500/mo
DosingWeekly
ManufacturerEli Lilly

Side-by-Side Comparison

PropertySemaglutide
Ozempic, Wegovy
Tirzepatide
Mounjaro, Zepbound
FDA Status
FDA Approved
FDA Approved
Category
Weight Loss
Weight Loss
Primary Use
Type 2 diabetes and chronic weight management
Type 2 diabetes and chronic weight management
Weight Loss %
15%
22.5%
Monthly Cost
$1,000 - $1,400/mo
$1,100 - $1,500/mo
Administration
Subcutaneous injection
Subcutaneous injection
Typical Dose
2.4mg weekly (Wegovy dose)
15mg weekly (max dose)
Frequency
Weekly
Weekly
Mechanism

GLP-1 receptor agonist that mimics incretin hormone to increase insulin secretion, slow gastric emptying, and reduce appetite

Dual GIP/GLP-1 receptor agonist that enhances insulin secretion, reduces glucagon, slows gastric emptying, and decreases appetite

Common Side Effects
  • Nausea
  • Diarrhea
  • Vomiting
  • Constipation
  • +2 more
  • Nausea
  • Diarrhea
  • Decreased appetite
  • Vomiting
  • +3 more
Serious Side Effects
  • Thyroid C-cell tumors
  • Pancreatitis
  • Diabetic retinopathy complications
  • Acute kidney injury
  • +1 more
  • Pancreatitis
  • Hypoglycemia
  • Acute gallbladder disease
  • Hypersensitivity reactions
  • +1 more
Evidence Quality
High
High
Clinical Trial Phase
Approved
Approved

Key Differences

  • 1Tirzepatide showed 22.5% average weight loss in trials compared to 15% for Semaglutide.
  • 2Semaglutide is generally more affordable ($1,000 - $1,400/mo) compared to Tirzepatide ($1,100 - $1,500/mo).

Which Is Better For...

TI

Tirzepatide

Maximum weight loss efficacy based on clinical trial data

SE

Semaglutide

More budget-friendly option with lower monthly costs

SE

Semaglutide

Fewer commonly reported side effects

Cost Comparison

PeptideMonthly Cost RangeFDA StatusManufacturer
Semaglutide$1,000 - $1,400/mo
FDA Approved
Novo Nordisk
Tirzepatide$1,100 - $1,500/mo
FDA Approved
Eli Lilly

Prices are estimated monthly costs and may vary based on pharmacy, insurance coverage, and manufacturer assistance programs. Costs for non-FDA-approved peptides reflect research compound pricing.

Frequently Asked Questions

What is the main difference between Semaglutide and Tirzepatide?

Semaglutide works via GLP-1 receptor agonist that mimics incretin hormone to increase insulin secretion, slow. Tirzepatide works via Dual GIP/GLP-1 receptor agonist that enhances insulin secretion, reduces glucagon, slows gastric. They differ in FDA approval status, efficacy data, and cost.

Which is more effective for weight loss, Semaglutide or Tirzepatide?

In clinical trials, Tirzepatide showed greater average weight loss (22.5%) compared to Semaglutide (15%). Individual results may vary.

How much does Semaglutide cost compared to Tirzepatide?

Semaglutide typically costs $1,000 - $1,400/mo, while Tirzepatide costs $1,100 - $1,500/mo. Prices may vary by pharmacy, insurance coverage, and manufacturer programs.

Are Semaglutide and Tirzepatide FDA approved?

Semaglutide is FDA-approved. Tirzepatide is FDA-approved. FDA approval indicates the treatment has met rigorous safety and efficacy standards.

What are the side effects of Semaglutide vs Tirzepatide?

Common side effects of Semaglutide include Nausea, Diarrhea, Vomiting. Common side effects of Tirzepatide include Nausea, Diarrhea, Decreased appetite. Always consult a healthcare provider about potential side effects.

Can I switch from Semaglutide to Tirzepatide?

Switching between peptide therapies should only be done under the guidance of a qualified healthcare provider. They can evaluate your medical history, current response, and determine the safest transition protocol.

Learn More

Semaglutide Full Profile
Type 2 diabetes and chronic weight management

Semaglutide is an FDA-approved GLP-1 receptor agonist marketed as Ozempic for type 2 diabetes and Wegovy for chronic weight management. Clinical trials demonstrated an average weight loss of 15% over ...

View Full Semaglutide Guide
Tirzepatide Full Profile
Type 2 diabetes and chronic weight management

Tirzepatide is a dual-action peptide approved by the FDA as Mounjaro for type 2 diabetes and Zepbound for weight management. It is the first medication to target both GIP and GLP-1 receptors simultane...

View Full Tirzepatide Guide

Other Popular Comparisons

Medical Disclaimer

The information provided on this page is for educational and informational purposes only and does not constitute medical advice. This comparison between Semaglutide and Tirzepatide should not be used as a substitute for professional medical guidance. Always consult a qualified healthcare provider before starting, stopping, or modifying any peptide therapy. Clinical data cited may be from ongoing trials and is subject to change. Individual results may vary significantly. PeptideVS does not endorse, recommend, or promote the use of any specific peptide for medical treatment.